JP2005539190A - Sound quiet ice making equipment - Google Patents

Abstract

The ice cube making machine is characterized in that it is a light-weight package that can be operated without noise at a site where ice cubes are distributed and is easy to install. The ice cube maker includes an evaporator package (30), a separate compressor package (50), and a separate condenser package (70). Each of these packages has an easy-to-install mass that can generally be handled by one or two installers. A noisy compressor and condenser package can be installed separately from the evaporator package. The maximum height distance between the evaporator package and the condenser package is considerably increased by the three package system. A pressure regulator (157) operates during the collection cycle to limit the flow of refrigerant exiting the evaporator. Thereby, the pressure and temperature of the refrigerant in the evaporator is increased to assist defrosting.

Description

  The present invention relates to an ice cube making machine in which a portion for dispensing ice is quiet.

  An ice cube maker generally includes an evaporator, a water supply, and a refrigerant / warm circuit that includes a condenser and a compressor. The evaporator is connected to a water supply source and a circuit including a condenser and a compressor. Valves and other controllers control the evaporator to operate periodically in freeze and collect modes. During the freezing mode, the water supply supplies water to the evaporator, and the circuit supplies refrigerant to the evaporator to cool the water and form ice cubes. During the collection mode, the circuit routes warm compressor discharge gas to the evaporator, thereby warming the evaporator and loosening the ice cubes and dropping from the evaporator into an ice box or ice hopper.

  When installed in a small footprint, such as a restaurant, the icemaker was separated into two separate packages or assemblies. One of the packages contains an evaporator and an ice box, and this package is installed in a restaurant. Other packages accommodate noisy compressors and condensers. This package is installed away from the evaporator, for example, on the roof outside the restaurant. The evaporator package is relatively quiet because the condenser and compressor are located far away.

This two package ice cube maker has several drawbacks. Due to refrigerant circuit routing constraints, the height distance between the two packages is limited to a maximum of about 35 feet. Furthermore, the mass of the compressor / condenser package is about 250 pounds or more and requires a crane to set up. In addition, opening a component and inspecting and repairing the compressor / condenser package usually requires a mechanic to be installed on the roof of the building. Since only the condenser needs to be ventilated to the atmosphere, it is highly desirable to be able to work on the compressor indoors in bad weather.

  During the collection mode, the condenser is bypassed to supply refrigerant in the vapor phase from the compressor to the evaporator. When the compressor is located at a distance away from the evaporator, it tends to partially change to the liquid phase as the refrigerant travels this distance, which adversely affects the efficiency of warming the evaporator, i.e. defrosting. give. One prior art solution to this problem is to use a heater to warm the steam supply line. Another prior art solution is to provide the receiver in the same package as the evaporator and supply steam to the evaporator using the amount of steam leakage in this receiver. Both of these solutions increase the size of the package and therefore increase the footprint of the commercial facility.

Accordingly, there is a need for a quiet ice cube making machine that has a large height distance between the evaporator and condenser, a small set mass, and does not require a crane.
There is also a need for an efficient method of providing vapor to the evaporator during the collection mode.
There continues to be a need for a short ice making device that solves the known set-up problem.
There is also a demand for a ice cube making machine having a compact configuration composed of a plurality of condensers and a small set mass.

The ice cube maker of the present invention satisfies the first requirement with a three package system. The condenser, compressor and evaporator are installed in separate packages, reducing the mass per package and do not require a crane when setting up. The compressor package can be installed up to 35 feet high from the evaporator package. For example, the evaporator package can be installed in a restaurant room that distributes ice cubes, and the compressor package can be installed in another room on another floor of the building, such as a utility room. As a result, in the conventional two-package system, it is necessary to perform inspection and repair outdoors, but these can be performed indoors. The condenser package can be installed up to 35 feet high from the compressor package. For example, the condenser package can be installed on the roof of a high-rise building.

  The evaporator package has a support structure that supports the evaporator. The compressor package has a support structure that supports the compressor. The condenser package has a support structure that supports the condenser.

  The present invention satisfies the desire to vaporize the evaporator during the collection mode by increasing the pressure and temperature of the refrigerant in the evaporator. This is accomplished by connecting a pressure regulator in the circuit to the return line between the evaporator and the compressor. The pressure regulator restricts the flow and raises the pressure and temperature of the refrigerant in the evaporator. In order to reduce the installation area of the evaporator package, a pressure regulator may be installed in the compressor package.

Other and further objects, advantages and features of the present invention will be understood by reference to the following specification, taken in conjunction with the accompanying drawings, in which like reference numerals designate like elements, and in which: .
FIG. 1 is a partial perspective view and a partial block diagram of a quiet ice cube making machine according to the present invention.
FIG. 2 is a partial perspective view and a partial block diagram of another embodiment of a quiet ice cube maker according to the present invention.
FIG. 3 is a circuit diagram of a refrigerant / warm circuit that can be used for the quiet ice cube maker of FIG.
FIG. 4 is a circuit diagram of another refrigerant / warm circuit that can be used with the quiet ice cube maker of FIG.
FIG. 5 is a circuit diagram of another refrigerant / warm circuit that can be used with the quiet ice cube maker of FIG.
FIG. 6 is a circuit diagram of another refrigerant / warm circuit that can be used with the quiet ice cube maker of FIG.
FIG. 7 is a perspective view of yet another embodiment of a ice cube making machine having a double loop condenser of the present invention.
FIG. 8 is a view taken along line 2-2 of FIG.
FIG. 9 is a circuit diagram of the ice cube making machine of FIG.
FIG. 10 is a perspective view of yet another embodiment of a ice cube making machine having a double loop condenser of the present invention.

DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to FIG. 1, the ice cube maker 20 of the present invention includes an evaporator package 30, a compressor package 50, a condenser package 70, and an interconnect structure 80. The evaporator package 30 includes a support structure 32 having an upwardly extending member 34. The evaporator 36 is supported by a support structure 32 and an upwardly extending member 34. An ice box or hopper 38 is located below the evaporator 36 to receive ice cubes in the collection mode.

  The compressor package 50 includes a support structure 52 having a compressor 54, an accumulator 56 and a receiver 40 disposed thereon. The condenser package 70 includes a support structure 72 on which a condenser 74 and a blower 76 are disposed. As will be apparent to those skilled in the art, the support structures 32, 52, 72 are separate from one another and may take different forms and shapes when directed by special design requirements. Further, as will be apparent to those skilled in the art, the evaporator package 30, the compressor package 50, and the condenser package 70 suitably include various valves and other components of the ice cube maker.

  Interconnect structure 80 connects evaporator 36, compressor 54 and condenser 74 in the circuit to allow circulation of refrigerant and warm air. The interconnect structure 80 can optionally include pipes or tubes and appropriate connection joints.

  Referring to FIG. 2, ice maker 25 is identical to ice maker 20 in all respects, except that receiver 40 is disposed on support structure 32 in evaporator package 30 instead of compressor package 50. Is different.

  Referring to FIG. 3, there is shown a circuit 82 that can be used with the ice cube maker of FIG. The circuit 82 includes an interconnect structure 80 that connects the components in the compressor package 50 to the components in the evaporator package 30 and the components in the condenser package 70. In the evaporator package 30, the evaporator 36 is connected to the defrost valve 42, the expansion valve 44, the liquid line solenoid valve 45, the dryer 46 and the shutoff valve 48 in the circuit 82. In the compressor package 50, the receiver 40, the compressor 54, and the accumulator 56 are connected to the filter 51, the bypass valve 53, the check valve 55, and the output pressure regulator 57 in the circuit 82. In the condenser package 70, the condenser 74 is connected to the head pressure control valve 58 in the circuit 82. The head pressure control valve 58 may be installed in the compressor package 50. As will be apparent to those skilled in the art, the evaporator package 30, the compressor package 50, and the condenser package 70 may include other valves and controllers for operation of the ice cube maker 20. A heat exchanger loop 87 is provided in thermal relationship with the liquid phase refrigerant in the accumulator for optimal use during the freezing cycle.

  Referring to FIG. 4, there is shown a circuit 182 that can be used with the ice cube maker 20 of FIG. The circuit 182 includes an interconnect structure 80 that connects components in the compressor package 50 to components in the evaporator package 30 and components in the condenser package 70. In the evaporator package 30, the evaporator 36 is connected in the circuit 182 to a defrost valve or cold steam valve 142 and an expansion valve 144. In the compressor package 50, the receiver 40, the compressor 54, and the accumulator 56 are connected to the filter 151, the bypass valve 153, and the output pressure regulator 157 in the circuit 182. In the condenser package 70, the condenser 74 is connected within the circuit 182 to a head master or head pressure control valve 158. A heat exchanger loop 187 is provided in thermal relationship with the output tube of the accumulator 56 so that the liquid refrigerant in the accumulator can be optimally used during the freeze cycle.

  As will be apparent to those skilled in the art, the evaporator package 30, the compressor package 50, and the condenser package 70 may include other valves and controllers for operation of the ice cube maker 20. For example, the ice making machine 20 includes a controller 193 that controls the operation of the ice making machine, including activation of the bypass solenoid valve 153, during the collection cycle. Alternatively, the pressure switch 192 may activate the solenoid valve 153 during the collection mode.

  In accordance with a feature of the present invention, the output pressure valve 157 operates during ice collection to increase the pressure and temperature of the refrigerant in the evaporator 36.

During the freeze cycle, the cold steam valve 142 and the bypass valve 153 are closed and the expansion valve 144 is open. The refrigerant flows from the output portion 184 of the compressor 54 through the pipe line 185, the condenser 74, the head pressure control valve 158, the pipe line 186, and the receiver 40. The flow continues through the heat exchanger loop 187, the supply line 188, the filter 151, the expansion valve 144, the evaporator 36, the return line 189, the accumulator 56, and the output pressure regulator 157 to the input 190 of the compressor 54. The output pressure regulator 157 opens greatly during the freezing cycle so that the refrigerant passes through without being affected by the flow.

  During the collection cycle, the cold steam valve 142 and the bypass valve 153 are opened and the expansion valve 144 is closed. The vapor phase refrigerant flows from the output portion of the compressor 54 to the receiver 40 through the pipe 186 via either or both of the bypass valve 153 and the head pressure valve 158. The flow continues through the steam line 191, the cold steam valve 142, the evaporator 36, the return line 189, the accumulator 56, and the output pressure regulator 157 to the input 190 of the compressor 54.

  The output pressure regulator 157 operates during collection to slow down the flow and reduce the pressure at the input 190 to the compressor 54. As a result, the pressure in the evaporator 36 increases and the vapor temperature in the evaporator 36 increases. As the refrigerant temperature in the evaporator 36 increases, the collection cycle is improved.

  The output pressure regulator 157 may be any suitable pressure regulator that can operate at the pressure required by the ice making system. The output pressure regulator may be, for example, model number OPR10 available from Alco.

  Referring to FIG. 5, there is shown a circuit 282 that can be used with the ice cube maker 25 of FIG. The circuit 282 includes an interconnect structure 80 that connects components in the compressor package 50 to components in the evaporator package 30 and components in the condenser package 70. In the evaporator package 30, the evaporator 36 and the receiver 40 are connected to a defrost valve 242, an expansion valve 244, a dryer 246 and a check valve 248 in the circuit 282. In the compressor package 50, the compressor 54 and accumulator 56 are connected in the circuit 282 to the head pressure control valve 258. In the condenser package 70, the condenser 74 is connected to the circuit 282. A head pressure control valve 258 may be installed in the condenser package 70. As will be apparent to those skilled in the art, the evaporator package 30, the compressor package 50, and the condenser package 70 may include other valves and controllers for operation of the ice cube maker 20.

  The ice cube making machines 20 and 25 of the present invention have the advantage of a lightweight package that facilitates set-up. In most cases, no crane is required. In addition, the evaporator package is very quiet in operation because the compressor and condenser are located apart. Finally, the distance between the evaporator package 30 and the condenser package 70 extends significantly to approximately 70 feet high due to the 35 foot height limitation of the prior art two package system.

  Referring to FIG. 6, there is shown a circuit 382 that can be used with the ice cube maker 20 of FIG. The circuit 382 includes an interconnect structure 80 that connects the components in the compressor package 50 to the components in the evaporator package 30 and the components in the condenser package 70. In the evaporator package 30, the evaporator 36 is connected to a defrost or cold steam valve 342 and an expansion valve 344 in a circuit 382. In compressor package 50, receiver 40, compressor 54 and accumulator 56 are connected in circuit 382 to filter 351, bypass valve 353, head master or head pressure control valve 358 and output pressure regulator 357. A heat exchanger loop 387 passes through the accumulator 56 and is in thermal relationship with the output tube of the accumulator 56 so that the liquid phase refrigerant in the accumulator 56 can be optimally used during the freeze cycle.

  As will be apparent to those skilled in the art, the evaporator package 30, the compressor package 50, and the condenser package 70 may include other valves and controllers for operation of the ice cube maker 20. For example, the ice making machine 20 includes a controller 393 that controls operations including activation of the bypass solenoid valve 353 during the collection cycle. Alternatively, pressure switch 392 may activate solenoid valve 353 during the collection mode.

According to a feature of the present invention, the output pressure valve 357 is activated to increase the pressure and temperature of the refrigerant in the evaporator 36 during ice collection.
During the freeze cycle, the cold steam valve 342 and the bypass valve 353 are closed and the expansion valve 344 is opened. The refrigerant flows from the output part 384 of the compressor 54 to the receiver 40 through the pipe line 385, the condenser 74, the head pressure control valve 358 and the pipe line 386. The flow continues through heat exchanger loop 387, supply line 388, filter 351, expansion valve 344, evaporator 36, return line 389, accumulator 56, output pressure regulator 357 to input 390 of compressor 54. . The output pressure regulator 357 opens widely during the freezing cycle so that the refrigerant passes through without being affected by the flow.

  During the collection cycle, the cold steam valve 342 and the bypass valve 353 are open and the expansion valve 344 is closed. The vapor phase refrigerant flows from the output part of the compressor 54 to the vapor line 391 through one or both of the first path including the bypass valve 353 or the head pressure valve 358, the line 386 and the second path including the receiver 40. Flowing. Flow continues through steam line 391, cold steam valve 342, evaporator 36, return line 389, accumulator 56, and output pressure regulator 357 to input 390 of compressor 54.

  The output pressure regulator 357 operates during collection to slow down the flow and reduce the pressure at the input 390 to the compressor 54. As a result, the pressure in the evaporator 36 increases and the vapor temperature in the evaporator 36 increases. As the refrigerant temperature in the evaporator 36 increases, the collection cycle is improved.

  Referring now to FIGS. 7 and 8, another embodiment of the ice making machine 20 is shown. The ice making machine 20 includes a single blower 412, a first condenser 414, a second condenser 436, a first compressor 416, and a second compressor 418. The first condenser 414 and the first compressor 416 are connected to each other to form a first refrigerant circuit including an evaporator and other representative refrigerant components. The second condenser 436 and the second compressor 418 are also connected to each other in a second refrigerant circuit that includes an evaporator and other representative refrigerant components. An ice box or hopper (not shown) may be placed between the evaporators (not shown) so that it receives ice cubes during the collection mode. The first condenser 414 and the second condenser 436 rest on the support structure 420. As a typical embodiment of the support structure 420, the support structure 420 is a box-like structure having a hole 422. The holes 422 are of a suitable size so that the blower 412 can circulate air and cool the first condenser 414 and the second condenser (not shown). As will be apparent to those skilled in the art, the blower 412 can be arranged in any suitable manner to cool the first condenser 416 and the second condenser 436.

  Support structure 420 also includes a first support element 424 and a second support element 434. The first support element 424 and the second support element 434 are attached to each other. The first support element 424 and the second support element 434 are configured to be attached by any method known in the art for connecting them in a V-shape. The first condenser 414 and the second condenser 436 rest on the first support element 424 and the second support element 434, respectively, in the support structure 420.

  The first support element 424 is mounted inside the support structure 420 and is a suitable structural support for the first condenser 414. The second support element 434 is also mounted within the support structure 420 and is a suitable structural support for the second condenser 436. As a typical embodiment of the first support element 424 and the second support element 434, the first and second support elements are dimensioned to allow air flow to circulate from the surroundings through the holes 422. The support structure 420 also has a second hole 438 provided in the bottom thereof. The hole 438 extends across the width of the support structure 420 and exposes the interior of the support structure 420 to the surroundings, contributing to cooling of the first condenser 414 and the second condenser 434, and with respect to the surroundings. Contributes to heat transfer.

  The first compressor 416 includes a first flange 426. The second compressor 418 also has a second flange 427. The support structure 420 is adapted to rest on a first flange 426 disposed on the first compressor 416 and a second flange 427 disposed on the second compressor 418. Preferably, the first flange 426 and the second flange 427 hold the mass of the support structure 420 together with the mass of the first condenser 416 and the second condenser 436 disposed in the support structure 420. Is appropriate. The first compressor 416 and the second compressor 418 are positioned so that the support structure 420 rests on the first flange 426 and the second flange 427.

  Support structure 420 also includes a first side 428 and a second side 429. In the first side 428 and the second side 429, a first condenser 414 and a second condenser (not shown) are connected to the first compressor 416 and the second compressor 418. A plurality of holes for connecting to each other are provided.

  As will be apparent to those skilled in the art, the first support element 424 and the second support element 434 are V-shaped and connected to the support structure 420, but the first and second support elements 424 434 may Arbitrary configurations may be used to create a compact configuration of condensers. Also, as will be apparent to those skilled in the art, the support structure 420 rests on the first flange 426 and the second flange 427 and is positioned at an appropriate height with respect to the ground so that air can be seen in FIG. , Through the support structure 420 via the hole 422 and through the second hole 438 to allow circulation below the support structure 420.

  Referring to FIG. 7, the first side 429 has a corresponding supply pipe that circulates refrigerant from the first compressor 416 to the first condenser 414 to form a first refrigerant circuit. It has a path (not shown) and a return line (not shown). The second side 428 has a corresponding supply line 430 and corresponding to circulate refrigerant from the second compressor 418 to a second condenser (not shown) to form a second refrigerant circuit. A return line 432 is provided. The first and second refrigerant circuits may be any suitable refrigerant circuit known in the art or to be known in the future.

  Referring to FIG. 9, there is shown a circuit 450 that can be used with the ice cube maker of FIG. Circuit 450 includes an interconnect structure that connects the components to form a first ice making system 452. The circuit 450 also includes an interconnect structure that connects the components to form a second ice making system 454. The first ice making system 452 is connected to the first condenser 416. The second ice making system 454 is connected to the second condenser 418. The first condenser 416 and the second condenser 418 are disposed in the support structure 420 adjacent to the blower 412. The first ice making system 452 and the second ice making system 454 may be any suitable ice making system known in the art or to be known in the future.

Referring to FIG. 10, there is shown another embodiment of a package 500 that includes a first compressor 502 and a condenser 510. As can be seen from the drawings, the package 500 includes a support structure 504. Support structure 504 is disposed within compressor package 502. In the exemplary embodiment of the compressor package 502, the support structure 504 houses a compressor (not shown). As will be apparent to those skilled in the art, air-cooled condensers are not economically suitable because space requirements are strict and condensers must be installed in small installation locations in urban areas. For example, in an urban installation where the compressor package 502 is installed on the lower floor of a building and the roof is higher than 35 feet above it, the air-cooled condenser performs heat transfer over a distance of 35 feet. It will not be able to function with advantageous abilities. This restrictive aspect can be disadvantageous in urban setting because of the presence of high-rise buildings. When packages are installed close to each other and an air-cooled condenser is used, the result is that the noise of the ice cube making machine is increased.

  However, a typical high-rise building usually has a source of a large amount of cooling water or cooling fluid. These cooling water or cooling fluid systems circulate throughout the building. In such cases, the present embodiment utilizes a large amount of cooling water source to provide the customer with greater up-and-down flexibility for the compressor package 502. Referring to FIG. 10, a compressor package 502 is shown here. The compressor package 502 has a support structure 504. Preferably, the compressor package 502 has holes 506 provided in the sides of the compressor package 502. The hole 506 is a side of the support structure 504. The hole 506 has a depth suitable for engaging with the insertion package 512. The insertion package 512 accommodates a water-cooled condenser 510 and a water amount adjustment valve 514. As will be apparent, the water regulating valve 514 may be any device suitable for connecting a building cooling water system to a condenser 510 and an associated refrigerant circuit (not shown). As will be apparent, any suitable refrigerant circuit known in the art can be used in this embodiment. Also, as will be apparent to those skilled in the art, the insert package 512 can be attached to the compressor package 502 with any suitable fasteners currently known in the art or will be known in the future. Thus, the compressor package 502 can be installed, for example, at a suitable distance from the evaporator (not shown) and is typically used in a productive manner that is lost in heat transfer over distances greater than about 35 feet. Never waste possible cooling characteristics.

  Although the invention has been described with particular reference to preferred forms thereof, it will be apparent that various changes and modifications can be made without departing from the spirit and scope of the invention as defined in the appended claims. I will.

FIG. 2 is a partial perspective view and a partial block diagram of a quiet ice cube making machine according to the present invention. FIG. 4 is a partial perspective view and a partial block diagram of another embodiment of a quiet ice cube maker according to the present invention. FIG. 2 is a circuit diagram of a refrigerant / warm circuit that can be used for the quiet ice cube maker of FIG. 1. FIG. 2 is a circuit diagram of another refrigerant / warm circuit that can be used with the quiet ice cube maker of FIG. 1. Figure 3 is a circuit diagram of another refrigerant / warm circuit that can be used with the quiet ice cube maker of Figure 2; FIG. 3 is a circuit diagram of another refrigerant / warm circuit that can be used with the quiet ice cube maker of FIG. 1. FIG. 6 is a perspective view of yet another embodiment of a ice cube making machine having a double loop condenser of the present invention. FIG. 8 is a view taken along line 2-2 in FIG. It is a circuit diagram of the ice cube making machine of FIG. FIG. 6 is a perspective view of yet another embodiment of a ice cube making machine having a double loop condenser of the present invention.

Claims (32)

A first package including a first support structure and an evaporator disposed thereon;
A second package including a second support structure and a compressor disposed thereon;
A third package including a third support structure and a condenser disposed thereon; and an ice making machine including an interconnection structure connecting the evaporator, the compressor and the condenser in a circuit for circulating the refrigerant.   The ice maker of claim 1, wherein the third package is located away from the first and second packages.   The ice maker of claim 1, wherein the first, second and third packages are located apart from each other.   The ice maker of claim 1, wherein the second and third packages are located apart from the first package.   And a blower disposed in the third package, an accumulator disposed in the second package, and a receiver disposed in the first package, wherein the accumulator and the receiver are connected in the circuit. Item 1. Ice maker.   The ice maker according to claim 1, further comprising a blower arranged in the third package, an accumulator arranged in the second package, and a receiver, wherein the accumulator and the receiver are connected in a circuit.   The ice maker of claim 6, further comprising a hopper disposed in the first package and receiving ice cubes formed by the evaporator. An evaporator, compressor and condenser connected in the circuit with the supply and return lines, and during the freezing cycle, refrigerant is supplied to the evaporator via the compressor and condenser along the supply line An evaporator, a compressor and a condenser that are connected to the compressor via a return line; and a pressure regulator connected in circuit with the return line, the pressure regulator collecting It is operable to limit the flow of refrigerant through the return line during the cycle, thereby increasing the pressure and temperature of the refrigerant in the evaporator to defrost the evaporator and collect ice. Ice machine including pressure regulator to help.   9. The ice making of claim 8 further comprising a receiver connected in circuit with the compressor, condenser and evaporator and operable to send a refrigerant stream through the supply line to the evaporator during the freezing cycle. Machine.   The ice maker of claim 9, wherein the receiver is operable to send refrigerant through the vapor line to the evaporator during the collection cycle.   9. The ice maker of claim 8, wherein the condenser and compressor are located away from the evaporator.   The evaporator is in the first package, the compressor is in the second package, the condenser is in the third package, and the first package is spaced from the second and third packages The ice making machine according to claim 8. 9. The ice maker of claim 8, further comprising a vapor line and valve body means for sending vapor phase refrigerant from the compressor to the evaporator during the collection cycle.   The ice making machine according to claim 13, wherein the valve body means includes a bypass valve and a head pressure valve. A condenser, a compressor, and an evaporator located remotely from the condenser and the compressor;
A receiver; and a head pressure valve and a solenoid valve connected in circuit with the compressor, condenser, evaporator and receiver, wherein either or both of the head pressure valve and the solenoid valve are condenser during the collection cycle An ice maker including a head pressure valve and a solenoid valve that is adapted to send a vapor phase refrigerant from the compressor to the receiver, bypassing the compressor.   The ice maker of claim 15, wherein the solenoid valve is activated by a pressure switch during the collection cycle.   16. The ice maker of claim 15, wherein the solenoid valve is activated by the controller during the collection cycle.   16. The ice maker of claim 15, further comprising a pressure regulator connected in circuit with the compressor and evaporator to restrict refrigerant flow from the evaporator to the compressor during the collection cycle.   16. The ice maker of claim 15, further comprising an accumulator connected in circuit with the evaporator and compressor, and a heat exchanger arranged to optimize the liquid phase refrigerant in the accumulator during the freezing cycle.   20. The ice making machine of claim 19, wherein the heat exchanger is a tube arranged to have a thermal relationship to the accumulator output line.   20. The ice making machine of claim 19, wherein the heat exchanger is a tube arranged to have a thermal relationship with the refrigerant inside the accumulator. A method of operating an ice making machine including an evaporator, a compressor and a condenser,
(A) providing a substantially liquid phase refrigerant to the evaporator of the ice making machine during a freezing cycle;
(B) providing a substantially vapor phase refrigerant to the evaporator during a collection cycle;
(C) restricting the flow of the refrigerant from the evaporator to the compressor of the ice making machine during the collection cycle, thereby increasing the pressure and temperature of the refrigerant in the evaporator and defrosting the evaporator The above method consisting of helping stage.   A first compressor and a second compressor respectively disposed on the first support structure and the second support structure, and a first condenser and a second condensate disposed on the third support structure. And a third support structure disposed between the first support structure and the second support structure, wherein the blower cools the first and second condensers when in operation. Like an ice maker.   In addition, the first support structure includes a first and second hole disposed on the third support structure, and the third support structure has a blower disposed in the first hole. 24. The ice maker of claim 23, wherein air is drawn through the second hole to cool the condenser. A third support structure is disposed in a suspended state between the first support structure and the second support structure, and when in operation, air is blown so that the blower cools the first and second condensers. Inhale, claim 23
Ice machine.   25. The ice maker of claim 24, further comprising a first flange disposed on the first support structure and a second flange disposed on the second support structure.   27. The ice maker of claim 26, wherein the third support structure rests on each of the first flange and the second flange.   The third support structure includes first and second support elements disposed within the third support structure, wherein the first and second support elements are disposed in a V shape with respect to the third support structure. 28. The ice maker of claim 27, wherein the first condenser is disposed on the first support element and the second condenser is disposed on the second support element.   And a first evaporator support structure having at least one evaporator connected to the first compressor and the first condenser to circulate the refrigerant, and a second compressor to circulate the refrigerant. And a second evaporator support structure having at least one evaporator connected to the second condenser and a first ice receiving ice cube formed by the first evaporator support structure and the second evaporator support structure. 29. The ice maker of claim 28, comprising first and second hoppers.   An ice making machine including a compressor disposed in a first support structure and a water-cooled condenser disposed in a second support structure.   The first support structure includes a first insert disposed thereon, the first insert has a wall, and the second support structure is disposed on the wall, the wall being the first 32. The ice making machine of claim 30 attached to the support structure.   32. The ice making machine of claim 31, wherein the second support structure includes a water amount adjustment valve, wherein the water amount adjustment valve is connected to a water supply source.

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